Chapelet, chain-pump, or similar apparatus.



No. 629,807. Patented Iuly IB, |899.-

` H. F. Il. LEMAIRE.

ICHAIELETIHIAIII PUMPUB SIMILAR APPARATUS.

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(Applcntion 81nd Apr. 16, 1098,)

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un. 629,107.A v Panama my 18,. 1899.

u. l?. nLenAms. CHPELET, CHAIN PUMP, OR'SIMILAR APPARATUS.

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UNITED STATES PATENT OFFICE.

CHAPEL-ET, CHAIN-Puna P,

OR SlMiLAR APPARATUS. 'I

SPECIFICATION 'forming part of Letters Patent No. 62Q,107,'dated July18, 1899. Application filed April 16, 1898. Serial No. 677,850. (Nomodel.)

To all zoll/om it mctyconcernf:

Beit knowny that' I, HENRI FELIX MARIE LEMAIRE, manufacturer', a citizenof the Republic'of France, residing at 152 Rue de Ri-` voli, Paris,France,l have invented certain new and useful Improvements in orRelating to Chapelets, Chain-Pumps, or Similar Apparatus, of which thefollowing is a specification.

This invention relates toa chapelet orchainpump and apparatus for use inraising water, dredging, or for similar purposes in which a series ofpivoted or swinging scoops or buck- VKets is employed; and theinventionhas imposition.

portant advantages over` similar apparatus hitherto known. i

In the usual water-raising devices the buckets are secured tothe linksof the chain,'and in order to be .emptied they must4 pass over at leastone-fourth of the circumference of the upper roller ork drum, or, inother words, their inner faces must come into a horizontal It is atleast one-fourth of the circumference, because owing to the curvaturethat water forms in a receptacle rotating about a horizontal axis it isnecessary in order to enable a bucket to be completely emptied to causeits inner face to form a downwardlyinclined angle with the horizontalline, which obviously requires that the upper bucket should pass atleast a' quarter of the revolution of the drum. This resultsjn aseriousdrawback, aecting the eiiciency of the apparatus. ln fact, as with thisdescription of raising devices it is necessary in order to empty thebuckets to raise the water, &c. ,to a higher level than that at which itis to be received it is advisable to decrease the diameter of the upperdrum in order to reduce the height to whichthe liquid is'to be raised;but in that case it is necessary to give it very small speed, otherwisethe jet of liquid flowing out of the bucket would pass beyond thereceptacle intended to receive it. In order to 'avoid this drawback, thebuckets are pivoted in such manner that at the slightestinclinationgiven to'them on'passing around the drum they' swing or turnover to a sufficient extent to at once pourout all their, contents intothe receptacle, the result beingthatthe. speed of the rotation of theupper drum mayl Intheaccompanying drawings, Figure lis afront elevationof the improved chapelet; Fig. 2,a section ,on the line 2 2 of Fig. l;Fig.

- 3, an elevation of a link with its bucket in its normal position; Fig.l, a vertical section of the same link, with the bucket turned over;

Fig. 5,'an elevation of a niodiied construc-v tion of the chapeletgf'ig.G, a vertical crosssection on the line 6 6 of Fig. 5; Fig. 7, avicw of alink and bucketof the chapelet shown in Figs. 5 and 6,-and Fig. S a'section of a link on the line 8 8 of Fig. 7. y l

The chapelet or chain-pump according to the present invention comprisesa chain with one kind of link. Each link consists of a metallic frame d,the hinged parts of which are formed by the vertical sides folded at aright angle, Figs. l to 4. These links are connected by cylindrical pinsb, recessed in the center to receivea spring c, secured to the upperhorizontal sideof the link. This spring serves to hold the pin b, whichcan `thus rotate about its own axis, but cannot move longitudinally.Each link carries a bucket er scoopd, the lateral sides or lower lugs dof which are mounted. on studs oriscrews e, secured to the folded partsof the vertical sides of the link. Each lug d has afprojection which isadapted to engage with the lower horizontal side of the link d when' thebucket has swung over, said projection and the part a of the linkengaged thereby thus-formingmeans for limiting the inward swing of thebucketon its pivot. The bottom ofthe bucket and the bottom crossbar offrame a are means for limiting movement ofthe bucket in the oppositedirection.

The .links a, provided with their buckets d, are connected by pinsv b,the ends of which project and are adapted to engage with the teeth oftwo disks ff, secured to a spindle g, supportedl in bearingsA h h andcaused to ro-l tate by means of a crank g on one of the` ends of saidspindle or in other desired manner.` As soon as, owing to the rotationYof the' disks ff forming the chain 1 wheel, a link comes intoengagement with them, it gradu-A IOO between the disks f f. The waterthence flows through a pipe or conduit 7c to any desired reservoir orplace.

Vith the pivoted buckets according to the present invention the disks ffmay be rotated at a great speed, as the buckets cZturn over suddenly andtheir contents are immediately discharged. Moreover, there is provided alip or extension t" in the chamber i for catching any projected waterthat may be shot over, and thus avoiding any loss.

In case a little water passes between the walls t' t' and the adjacentdisks ffit can be caught and delivered into the pipe 7c by iianges t2,surrounding the lower portion of the disks. y

lVhen a bucket d has made half a revolution on the disks ff, it comesinto a vertical position, but bottom upward, in which position it dipsinto the water of the well, ttc., where it isrfilled and rises again inan upright position, ready to swing over and empty itself again onarriving at the disks.

When the apparatus is stopped, it is necessary to prevent all thebuckets on the ascending side ywhich are full from causing movement ofthe whole apparatusl owing to their weight. This could obviously beeffected by means of a ratchet wheel and pawl mounted on the spindle g;but to avoid the disagreeable noise caused by the use of suchratchetgear it is preferable to use the well-known ball or rollerclutch, consisting of a ratchetwheel m, mounted at one end of thespindle g and adapted to rotate with the shaft in a fixed cup n. Betweenthe teeth ot' the ratchetwheel are arranged cylindrical rollers, whichwhen the shaft g and the ratchet-wheel m rotate in the directionindicated by the arrow, Fig. l, (the direction in which the disks 4o j"f rotate when the chapelet is working,) are caused to rotate by theratchet-wheel m without producing any effect; but if the crank g isreleased the full buckets tend to rotate the disks ff in the oppositedirection. The ratchet-wheel m follows this movement; but the rollersrolling on the inclined faces of the ratchet-teeth become wedged betweenthe latter and the inner face of the cup n and prevent the apparatusfrom rotating.

In the construction shown in Figs. 5 to 8 each link ct consists of twostrips or pieces of fiat metal riveted together and forming a fork forthe purpose of receiving the corresponding portion of the adjoininglink. The pin b, connecting together two links, has its central portionof a diameter slightly larger than that of the ends, the opposite end ofone of the links to that of the fork being mou nted on said centralportion. This thickened portion of the pin is held between the twobranches of -the corresponding fork and prevents the pin from comingout. Each element of the link has, moreover, a bent arm c', and on andbetween these two arms of each link is pivoted a bucket d. The bucketcan swing on its pivots, the extent being limited by the oblique ends a2of the arms c', against which rests the ranged under the disk f toreceive water discharged from the buckets d, and a branch Z is connectedto a pipe conducting the liquid to the place where it is to bedelivered. As in the construction Figs. l to 4,*the bucketsof the secondconstruction swing over almost immediately after the chain has begun toturn on the disk and discharge their contents. This construction issimple and has the ad` vantage of requiring only one disk instead of Atwo. The chain is, moreover, easier to manufacture and the wholeapparatus cheaper than the first-described form.

Having now particularly described and ascertained the nature of thisinvention and in what manner the same is to be performed, I declare thatwhat I claim is-` l. The combination of a chain-supporting wheel, anendless chain consisting of links pivoted together,inwardly-fallin gbuckets the bottoms of which are pivoted to said links, the pivots beingso placed as to throw the center of gravity of the ascending bucketsslightly outside of their pivots, means preventing said buckets fallingoutward, a conduit t' below the part of the chain passing over saidwheel and between the ascending and descending parts of the chain,whereby a slight tilting of the links causes the buckets to emptyinward.

2. Thecombination in a chapelet or chain pump apparatus, with a chainsupporting and driving wheel, and an endless chain consisting of linkswith parallel sides, and pivots connecting said links, said pivots beingrecessed intermediate the sides of the links, and springs c secured tothe links and engaging the recesses ofthe pins, of buckets pivoted tosaid links.

3. The combination of the driving-spindle, disks thereon, a chain havingbuckets supported and driven by said disks, and said buckets beingadapted to empty inward, and a conduit t inclosed by the lower part ofsaid disks and into which said buckets empty and inclosing lianges t2.

4. A chain device for pumps having links each link consisting of a framed with lateral sides at right angles thereto, pins pivoting the linkstogether, buckets having bottom lugs d', pivots e, said lugs d havingprojections adapted to engage frames c when the buckets turn the desired`distance on their pivots.

5. The combination of the driving-shaft, the driving-wheel having disksand teeth j" thereon, a chain with buckets supported by IOC) Signed atParis,F1ance,this 1st day of April, 189 S. Y

A HENRl FELIX MARIE LEMAIRE.

Witnesses:

ABEL JULIEN, ANDRE PONGERE.

